12103420324 has 12 divisors (see below), whose sum is σ = 21186420444. Its totient is φ = 6050157344.

The previous prime is 12103420321. The next prime is 12103420327. The reversal of 12103420324 is 42302430121.

It is an interprime number because it is at equal distance from previous prime (12103420321) and next prime (12103420327).

It can be written as a sum of positive squares in 2 ways, for example, as 11102836900 + 1000583424 = 105370^2 + 31632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12103420295 and 12103420304.

It is not an unprimeable number, because it can be changed into a prime (12103420321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370579 + ... + 401914.

It is an arithmetic number, because the mean of its divisors is an integer number (1765535037).

Almost surely, 2^12103420324 is an apocalyptic number.

It is an amenable number.

12103420324 is a deficient number, since it is larger than the sum of its proper divisors (9083000120).

12103420324 is a wasteful number, since it uses less digits than its factorization.

12103420324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776414 (or 776412 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12103420324 its reverse (42302430121), we get a palindrome (54405850445).

The spelling of 12103420324 in words is "twelve billion, one hundred three million, four hundred twenty thousand, three hundred twenty-four".